Twee wetenschappers in beschermende maskers en kostuums vis te onderzoeken en te schrijven in Klembord in de buurt van rivier - Stockfoto’s en -afbeeldingen

Male scientist in protective mask and suit opening working suitcase while his female colleague writing in clipboard

Female scientist in protective mask and suit writing in clipboard while her colleague putting sample of water

Serious male scientist in protective mask and suit writing in clipboard near water outdoors

Female scientist in protective mask and suit writing in clipboard while her colleague putting sample of water near river outdoors

Male scientist in protective mask and suit holding fish by tweezers while his colleague examining it by magnifier near river

Selective focus of male scientist in protective mask and suit writing in clipboard near water outdoors

Male scientist in protective suit and mask holding fish by tweezers near river

Selective focus of female scientist in protective mask and suit writing in clipboard while her colleague putting sample of water near river outdoors

Low angle view of pest control worker standing with sprayer

Pest control worker spraying pesticides on street with sprayer

Cropped image of male scientist in protective suit walking with working suitcase in meadow

Pest control worker standing in respirator in bathroom and looking at camera

Pest control worker standing in respirator in bathroom with sprayer

Cropped image of male scientist in latex gloves taking sample of stone by tweezers outdoors

Portrait of pest control worker in respirator looking at camera

Pest control worker spraying pesticides on bush